Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12
  1. #1
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31

    Ever dissect a waterbox????

    Has anyone ever cut open a Polaris 650, 750, 780 waterbox?

    My PSI dry pipe clogged the cooling orifice a few times and melted the exhaust hose. I'm wondering if there is anything internally that I damaged in the process.

    I still can't figure out why her ride needed to up the jetting this year from when I put her away last season. No mods were done at all.

    I looked at everything 2 or 3 times and found nothing. Fuel pump rebuilt, carbs thoroughly cleaned twice, new hoses, etc...

    I always wondered if there was something up with the waterbox. I could've baked cookies on that thing a few times.

    I'm curious to know if there could be internal failures, or if it's just a SS maze for water and exhaust to escape from. Thanks


  2. #2
    rlharrison60's Avatar
    Join Date
    Aug 2007
    Location
    Orange, Texas
    Posts
    1,091
    +1
    1
    I have a extra exhaust hose if you need it.

  3. #3
    Race, wreck, repeat delagem's Avatar
    Join Date
    Aug 2006
    Location
    Homer, NY
    Posts
    728
    +1
    2
    Kevin,

    I never cut open a Polaris waterbox, but I did cut up a few older Kawi's. They're easier to modify because of the fiberglass clamshell design.

    All there was inside was 2 tubes, one from the engine, and one to the side of the hull. The one from the engine had a bunch of holes in it, a wad of stainless mesh (think Brillo Pad), and a cap on the end. The tube to the hull was placed such that water needed to fill the box about 1/3 way full before it began pushing out the exhaust.

    So what would cause a need to richen? Freer breathing? Mesh gone, pipe rotted away internally? End cap fell off? Do Polari even have the mesh or end cap?

    Supposedly on the Kawis, removing the stainless mesh uncorked a bit of power. I also popped off the cap on the end of the inlet tube, which made the ski way too loud, although I was running the gutted box along with a Coffmans pipe, probably the loudest combination possible!

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31
    Thanks for the offer Robert, but I have 3 already. (you never know when you need a spare with a paper clip sized cooling orifice)

    Delagem, long time no see.....

    Thanks for the insight, that's what I'm starting to look into. You kinda backed up my theory. Looks like a waterbox may be added to my John Zigler parts needed list.

  5. #5
    Race, wreck, repeat delagem's Avatar
    Join Date
    Aug 2006
    Location
    Homer, NY
    Posts
    728
    +1
    2
    Yeah, just got off the ship! Miserable 30 hour flight from Singapore, caught SARS or Bird Flu or something, ugh sick.....

    I can't imagine what could go wrong inside a stock waterbox, but as an example, that Hot Seat box I bought I did find the inlet tube rotted in half....

    If you shake the waterbox, can you hear anything rattling? That's what clued me in on mine.

  6. #6
    SPEED KILLS, BUT YOU GET THERE QUICKER Keddano's Avatar
    Join Date
    Jul 2007
    Location
    Cedar Rapids,Iowa
    Posts
    6,381
    +1
    23
    Quote Originally Posted by xlint89 View Post
    Thanks for the offer Robert, but I have 3 already. (you never know when you need a spare with a paper clip sized cooling orifice)

    Delagem, long time no see.....

    Thanks for the insight, that's what I'm starting to look into. You kinda backed up my theory. Looks like a waterbox may be added to my John Zigler parts needed list.
    Kevin,I have one from the 700,which I think is the same as the 750,It's your's if you want it.

  7. #7
    Moderator beerdart's Avatar
    Join Date
    Aug 2006
    Location
    CT
    Posts
    25,929
    +1
    1,407
    I cut the 750 box open to adapt to the GPRXP. It has five small 1" tubes in a circle running length wise(Like a Gatling Gun) and has three separate chambers to baffle. It is quite solid..
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	CIMG3979.JPG 
Views:	46 
Size:	1.33 MB 
ID:	110292   Click image for larger version. 

Name:	CIMG3977.JPG 
Views:	43 
Size:	1.29 MB 
ID:	110293   Click image for larger version. 

Name:	CIMG3984.JPG 
Views:	52 
Size:	1.31 MB 
ID:	110294   Click image for larger version. 

Name:	CIMG3987.JPG 
Views:	51 
Size:	1.34 MB 
ID:	110295  

  8. #8
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
    Join Date
    Oct 2006
    Location
    Cleveland OH
    Posts
    17,330
    +1
    31
    Michael, no rattling whatsoever. (good I guess)

    Dan, I may take you up on that offer. I'll PM if I do need it. THANKS

    BD, thanks for the description. So, if it's 5 tubes and no rattling, it's prob good to go.

    Thanks guys

  9. #9

    Join Date
    Apr 2008
    Location
    Lock Haven, PA
    Posts
    64
    Never took one apart. I got a Hot Seat waterbox for sale though if you're interested. Nothing obnoxious sounding, just has a nice low modified sound to it.

  10. #10
    pm me with price and info shipped to 76126

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Ever drop something in a RXP/RXT engine compartment?
    By Pee2xUSee in forum 4-Tec Performance
    Replies: 31
    Last Post: 09-14-2008, 12:16 AM
  2. Did you ever think?
    By Peligroso in forum 4-Tec Performance
    Replies: 15
    Last Post: 12-30-2007, 11:25 PM
  3. Waterbox mod.
    By Therock in forum 4-Tec Performance
    Replies: 15
    Last Post: 07-08-2005, 07:22 AM
  4. How loud is the Modded Stock Waterbox
    By johnD in forum 4-Tec Performance
    Replies: 2
    Last Post: 05-23-2005, 11:03 PM
  5. RXP Race waterbox
    By Vern in forum 4-Tec Performance
    Replies: 9
    Last Post: 05-23-2005, 04:22 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •